[Wim HUGO]

 
Collaborative session notes: https://docs.google.com/document/d/1mAodZnnhCYUPzt4QQQXoQEmte5U9yYKxmnrB…

Overview of work to date (W Hugo)

Overview of updated use cases and conceptual background (W Hugo – moderator). These will take the form of short pre-recorded presentations

FAIRCORE4EOSC Use Cases (T Suominen)

FAIR-IMPACT Use Cases (V Kalaidzi)

EOSC Technical Interoperability Use Case(s) (E Sciacchi – TBC)

Metadata Crosswalks and SEMAF Use Cases (D Broeder – TBC)

Use cases contributed by WG members before end January 2023.

Present and review design considerations for federated registries of mediators, and brokering services – validate against use cases (W Hugo)

Present and review recommendations and best practices – validate against use cases (W Hugo)

Next steps (All)

Additional links to informative material
Previous Plenary – Main Presentation
Current Conceptual Model
Current Set of Recommendations

Avoid conflict with the following group (1)
RDA/WDS Certification of Digital Repositories IG

Brief introduction describing the activities and scope of the group
The Brokering Working Group was formed to explore a framework for the creation of and desired characteristics of federated infrastructure to register and invoke services for mediation and brokering. These are, in turn, a critical element of interoperability on many levels, since complete and narrow standardisation across the full scope of such infrastructure remains elusive and is likely to remain so.
In research data and related infrastructure, a federated ecosystem of services exist, and these services support a large variety of use cases. These deal with, inter alia, 

Deposit of research outputs and metadata into repositories,

Verification of schema and file formats,

Assessment of various types of compliance, 

Indexing, facetting, and cataloguing tools and services

Search and discovery tools and APIs,

Data access and transformation services, such as content negotiation,

Value-added applications, tools, and workflows.

Increasingly, access to research outputs, metadata, and supporting services in the ecosystem are machine actionable and accessible via APIs.
Mediation is defined as services that assist with the transformation of or mapping of the typical API responses we deal with in our infrastructure to the specification of a client or consumer of that API response, and brokering refers to mechanisms to select and invoke the most suitable or fitting mediation or series of mediations to achieve a specific outcome.
 

Some examples or mediations:

Technical (Syntactic) interoperability:

Resolution and redirection services, for example a PID service or an alias for a vocabulary URI

Syntax translation and mapping – for example transforming a OAI-PMH request into a different harvesting protocol or vice versa

…

Technical (Schematic) Interoperability

Simple (MIME Type) transformations (e.g. XLS to CSV, XML to JSON, Shape Files to GeoJSON, …)

Mapping LOD references to match compliance verification (for example FAIR, PID Policy Compliance, …)

Compression (list of folders to a zip)

…

These can be lossy or lossless

Semantic Interoperability (as exemplified in the SEMAF proposal)

Simple Semantic transformations and crosswalks (e.g. Dublin Core to schema.org, etc. with only exact equivalences)

 Semantic mappings between API semantics and tool semantics (e.g. mapping  a data service API response to a charting visualisation)

Fuzzy and imprecise semantic mappings that involve named relations between the individual source and target elements, and may involve many-to many mappings

…

Many examples have been collected in the work done by RDA in other working groups.

Group chair serving as contact person
Tommi Suominen

Meeting objectives
Presenting and reviewing the work of the Brokering Framework Working Group, obtaining feedback from the community on recommendations and best practices, and confirming remaining steps prior to adoption. The session will review a number of new use cases and validate these aginst the draft recommendations of the working group.

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